void send_ack(PACKET file_packet [], PACKET* ack_packet, int sock, struct sockaddr_in *serv_addr, int *getp, int need)
{
struct sockaddr_in from_addr;
int from_addr_len;
PACKET *rec_packet;
int seq;
rec_packet = (PACKET *) malloc (sizeof (*rec_packet));
from_addr_len = sizeof(from_addr);
seq = ack_packet->sequence;
while (need > 0) {
ack_packet->control = RETR;
ack_packet->sequence = (getp[need]);
if (sendto(sock, ack_packet, sizeof(*ack_packet), 0, (struct sockaddr *) serv_addr, sizeof(*serv_addr)) <= 0)
die_with_error("send error");
if (recvfrom(sock, rec_packet, sizeof(*rec_packet), 0, (struct sockaddr *) &from_addr, &from_addr_len) <= 0)
die_with_error("recvfrom() error");
file_packet[(getp[need]) % 5] = *rec_packet;
need--;
}
ack_packet->control = (ACK);
ack_packet->sequence = seq;
strcpy(ack_packet->data, "ack");
ack_packet->loadsize = (strlen("ack"));
if (sendto(sock, ack_packet, sizeof(*ack_packet), 0,
(struct sockaddr *) serv_addr, sizeof(*serv_addr)) <= 0)
die_with_error("send error");
} /* send_ack(PACKET*, int) */
/*****************************************************************************
* @name
* @description
* @param
* @return
*/
void send_sip_invite(sip_session_t *session)
{
int l;
char *s;
struct sockaddr_in addr;
s = gen_call_id(session);
session->call->id = (char *) malloc(strlen(s)*sizeof(char));
memcpy(session->call->id,s,strlen(s));
session->call->socket = open_udp_socket(session->localip,0);
l = sizeof(addr);
if(getsockname(session->call->socket,(struct sockaddr *) &addr,(socklen_t *) &l))
die_with_error("getsockname() failed");
session->call->sport = ntohs(addr.sin_port);
s = mk_sip_msg(session,0,INVITE);
if((l =sendto(session->socket,s,strlen(s)+1,0,(struct sockaddr *) &(session->addr), sizeof(session->addr)) ) != strlen(s)+1)
die_with_error("sendto() failed");
session->prev_state = REGISTERED;
session->curr_state = INVITING;
}
int main(int argc, char **argv)
{
int server_sock;
int client_sock;
pthread_t thread_id;
struct thread_args_t *thread_args;
server_sock = create_server_socket(SERVERPORT);
for (;;) {
client_sock = accept_connection(server_sock);
// Create separate memory for client argument
if ((thread_args = (struct thread_args_t *)malloc(sizeof(struct thread_args_t))) == 0)
die_with_error("malloc() failed");
thread_args->client_sock = client_sock;
// Create client thread
if (pthread_create(&thread_id, 0, thread_main, (void *)thread_args) != 0)
die_with_error("pthread_create() failed");
printf("...with thread %lu\n", (unsigned long)thread_id);
}
/* This point is never reached. */
return 0;
}
int create_server_socket(unsigned short port)
{
int sock;
struct sockaddr_in serv_addr;
// Create socket
if ((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
die_with_error("socket() failed");
// Setup local address structure
memset(&serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
serv_addr.sin_port = htons(port);
// Bind socket to local address structure
if (bind(sock, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
die_with_error("bind() failed");
// Make socket listen for incoming connections
if (listen(sock, MAXPENDING) < 0)
die_with_error("listen() failed");
return sock;
}
void WSTask(){
int s;
int suspended = 0;
int counter = 0;
long read,total;
INT8U err;
alt_u16 buff[BUFFER_SIZE];
//Setup connection to server
struct sockaddr_in result;
memset(&result, 0, sizeof(struct sockaddr_in));
result.sin_family = AF_INET;
result.sin_port = htons(MY_PORT);
net_aton("198.23.158.70", &(result.sin_addr));
//Test the connection
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
sendToLCD("Client: cannot open socket");
die_with_error("");
}
if (connect(s, (struct sockaddr *) &result, sizeof(result))) {
sendToLCD("No connection");
die_with_error("");
}
close(s);
while (1) {
if (counter >= BUFFER_SIZE){
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
sendToLCD("Client: cannot open socket");
OSTaskDel(HTTP_PRIO);
}
if (connect(s, (struct sockaddr *) &result, sizeof(result))) {
die_with_error("");
OSTaskDel(HTTP_PRIO);
}
read = write(s,buff, counter);
total += read;
if( read < 0 ){
sendToLCD("Lost connection");
die_with_error("");
}
printf("Sent %d bytes to client. Total: %d\n", read, total);
close(s);
counter = 0;
}
int fill_level;
while((fill_level = altera_avalon_fifo_read_level(INTERNET_FIFO_OUT_BASE)) > 0 && counter < BUFFER_SIZE){
buff[counter] = (alt_u16) altera_avalon_fifo_read_fifo(INTERNET_FIFO_OUT_BASE,INTERNET_FIFO_IN_CSR_BASE);
counter++;
}
}
}
/* This is pid 1 in the app sandbox. It is needed because we're using
* pid namespaces, and someone has to reap zombies in it. We also detect
* when the initial process (pid 2) dies and report its exit status to
* the monitor so that it can return it to the original spawner.
*
* When there are no other processes in the sandbox the wait will return
* ECHILD, and we then exit pid 1 to clean up the sandbox. */
static int
do_init (int event_fd, pid_t initial_pid)
{
int initial_exit_status = 1;
LockFile *lock;
for (lock = lock_files; lock != NULL; lock = lock->next)
{
int fd = open (lock->path, O_RDONLY | O_CLOEXEC);
struct flock l = {0};
if (fd == -1)
die_with_error ("Unable to open lock file %s", lock->path);
l.l_type = F_RDLCK;
l.l_whence = SEEK_SET;
l.l_start = 0;
l.l_len = 0;
if (fcntl (fd, F_SETLK, &l) < 0)
die_with_error ("Unable to lock file %s", lock->path);
/* Keep fd open to hang on to lock */
}
while (TRUE)
{
pid_t child;
int status;
child = wait (&status);
if (child == initial_pid && event_fd != -1)
{
uint64_t val;
int res UNUSED;
if (WIFEXITED (status))
initial_exit_status = WEXITSTATUS(status);
val = initial_exit_status + 1;
res = write (event_fd, &val, 8);
/* Ignore res, if e.g. the parent died and closed event_fd
we don't want to error out here */
}
if (child == -1 && errno != EINTR)
{
if (errno != ECHILD)
die_with_error ("init wait()");
break;
}
}
return initial_exit_status;
}
int main(int argc, char *argv[])
{
int srv_sock, clnt_sock = 0;
unsigned int clnt_len;
struct sockaddr_in srv_addr, clnt_addr;
struct client_handler_data *next_clnt;
// Create our listen socket
if((srv_sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
die_with_error("socket() failed!");
// Create the address structure
memset(&srv_addr, 0, sizeof(srv_addr));
srv_addr.sin_family = AF_INET;
srv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
srv_addr.sin_port = htons(DID_DEFAULT_PORT);
// Bind to the address we just specified
if((bind(srv_sock, (struct sockaddr *)(&srv_addr), sizeof(srv_addr)) < 0))
die_with_error("bind() failed!\n");
// Listen for connections
if((listen(srv_sock, MAX_PENDING) < 0))
die_with_error("listen() failed!");
for(;;)
{
// When we receive a connection from a a client, make a new thread to handle them
clnt_len = sizeof(clnt_addr);
if((clnt_sock = accept(srv_sock, (struct sockaddr *)(&clnt_addr), &clnt_len)) < 0)
die_with_error("accept() failed!");
next_clnt = (struct client_handler_data *)malloc(sizeof(struct client_handler_data));
next_clnt->sock = clnt_sock;
if(curr_clients++ < MAX_CLIENTS)
{
pthread_create(&(next_clnt->thread), NULL, handle_client,
(void *)next_clnt);
}
else
printf("Client refused! Too many clients are connected!");
}
// We should never reach this. Yet.
pthread_exit(NULL);
exit(0);
}
static void child(int pty_master_fd, int pty_child_fd) {
if (close(pty_master_fd) == -1) {
die_with_error("close[master]");
}
struct termios term_settings;
if (tcgetattr(pty_child_fd, &term_settings) == -1) {
die_with_error("tcgetattr");
}
cfmakeraw(&term_settings);
if(tcsetattr(pty_child_fd, TCSANOW, &term_settings) == -1) {
die_with_error("tcsetattr");
}
if (dup2(pty_child_fd, 0) == -1) {
die_with_error("dup2 [stdin]");
}
if (dup2(pty_child_fd, 1) == -1) {
die_with_error("dup2 [stdout]");
}
if (dup2(pty_child_fd, 2) == -1) {
die_with_error("dup2 [stderr]");
}
if (close(pty_child_fd) == -1) {
die_with_error("close[child]");
}
if (setsid() == -1) {
die_with_error("setsid");
}
if (ioctl(0, TIOCSCTTY, 1) == -1) {
die_with_error("ioctl");
}
const char * shell = get_shell();
char * const * args = calloc(0, sizeof(char *));
if (execv(shell, args) == -1) {
die_with_error("execv");
}
}
void send_file(FILE * fid, char * f_name, int sock, struct sockaddr_in *serv_addr) {
PACKET * packet;
PACKET * data_packet;
packet = (PACKET *) malloc (sizeof(*packet));
data_packet = (PACKET *) malloc (sizeof(*data_packet));
int count = 0;
struct sockaddr_in from_addr;
int from_addr_len = sizeof(from_addr);
packet->control = PUT;
strcpy(packet->data, f_name);
packet->loadsize = strlen(f_name);
packet->sequence = 0;
//printf("%s", packet->data);
if (sendto(sock, packet, sizeof(*packet), 0, (struct sockaddr *) serv_addr, sizeof(*serv_addr)) <= 0)
die_with_error("send error");
if (recvfrom(sock, packet, sizeof(*packet), 0, (struct sockaddr *) &from_addr, &from_addr_len) <= 0)
die_with_error("recvfrom error");
char line[30];
while (fgets(line, sizeof(line), fid) != NULL) {
count++;
data_packet->control = DATA;
memcpy(data_packet->data, line, sizeof(line));
//strcpy(data_packet->data, line);
data_packet->loadsize = strlen(line);
data_packet->sequence = count;
if (sendto(sock, data_packet, sizeof(*data_packet), 0, (struct sockaddr *) serv_addr, sizeof(*serv_addr)) <= 0)
die_with_error("send error");
//printf("%s", line);
//count++;
if (count % 5 == 0) {
if (recvfrom(sock, packet, sizeof(*packet), 0, (struct sockaddr *) &from_addr, &from_addr_len) <= 0)
die_with_error("recvfrom error");
}
}
packet->control = ACK;
if (sendto(sock, packet, sizeof(*packet), 0, (struct sockaddr *) serv_addr, sizeof(*serv_addr)) <= 0)
die_with_error("recvfrom error");
}
static uint32_t
read_priv_sec_op (int read_socket,
void *buffer,
size_t buffer_size,
uint32_t *flags,
const char **arg1,
const char **arg2)
{
const PrivSepOp *op = (const PrivSepOp *)buffer;
ssize_t rec_len;
do
rec_len = read (read_socket, buffer, buffer_size - 1);
while (rec_len == -1 && errno == EINTR);
if (rec_len < 0)
die_with_error ("Can't read from unprivileged helper");
if (rec_len < sizeof (PrivSepOp))
die ("Invalid size %zd from unprivileged helper", rec_len);
/* Guarantee zero termination of any strings */
((char *)buffer)[rec_len] = 0;
*flags = op->flags;
*arg1 = resolve_string_offset (buffer, rec_len, op->arg1_offset);
*arg2 = resolve_string_offset (buffer, rec_len, op->arg2_offset);
return op->op;
}
void* handle_tcp_client(void *client_socket_ptr) {
int client_socket = *((int *) client_socket_ptr);
free(client_socket_ptr); /* malloc was made before starting this thread */
char square_buffer[RCVBUFSIZE]; /* Buffer for square string */
int recv_msg_size; /* Size of received message */
while (TRUE) {
/* Receive message from client */
recv_msg_size = recv(client_socket, square_buffer, RCVBUFSIZE - 1, 0);
handle_error(recv_msg_size, "recv() failed", PROCESS_EXIT);
if (recv_msg_size == 0) {
/* zero indicates end of transmission */
break;
}
square_buffer[recv_msg_size] = '\000';
/* Send received string and receive again until end of transmission */
/* Square message and send it back to client */
int x = atoi(square_buffer);
int y = x*x;
sprintf(square_buffer, "%12d", y);
int send_msg_size = strlen(square_buffer);
ssize_t sent_size = send(client_socket, square_buffer, send_msg_size, 0);
if (sent_size != recv_msg_size) {
die_with_error("send() failed");
}
/* See if there is more data to receive in the next round...*/
}
close(client_socket); /* Close client socket */
return NULL;
}
static void parent(int pty_master_fd, int pty_child_fd) {
if (close(pty_child_fd) == -1) {
die_with_error("close [child]");
}
// TODO start up sdl, gl and madness!
}
VkResult wait_for_event(VkEvent event, u64 timeout)
{
u64 t = 0;
while (true)
{
switch (const auto status = vkGetEventStatus(*g_current_renderer, event))
{
case VK_EVENT_SET:
return VK_SUCCESS;
case VK_EVENT_RESET:
break;
default:
die_with_error(HERE, status);
return status;
}
if (timeout)
{
if (!t)
{
t = get_system_time();
continue;
}
if ((get_system_time() - t) > timeout)
{
LOG_ERROR(RSX, "[vulkan] vk::wait_for_event has timed out!");
return VK_TIMEOUT;
}
}
//std::this_thread::yield();
_mm_pause();
}
}
static void
acquire_caps (void)
{
struct __user_cap_header_struct hdr = { _LINUX_CAPABILITY_VERSION_3, 0 };
struct __user_cap_data_struct data[2] = { { 0 } };
if (capget (&hdr, data) < 0)
die_with_error ("capget failed");
if (((data[0].effective & REQUIRED_CAPS_0) == REQUIRED_CAPS_0) &&
((data[0].permitted & REQUIRED_CAPS_0) == REQUIRED_CAPS_0) &&
((data[1].effective & REQUIRED_CAPS_1) == REQUIRED_CAPS_1) &&
((data[1].permitted & REQUIRED_CAPS_1) == REQUIRED_CAPS_1))
is_privileged = TRUE;
if (getuid () != geteuid ())
{
/* Tell kernel not clear capabilities when dropping root */
if (prctl (PR_SET_KEEPCAPS, 1, 0, 0, 0) < 0)
die_with_error ("prctl(PR_SET_KEEPCAPS) failed");
/* Drop root uid, but retain the required permitted caps */
if (setuid (getuid ()) < 0)
die_with_error ("unable to drop privs");
}
if (is_privileged)
{
/* Drop all non-require capabilities */
data[0].effective = REQUIRED_CAPS_0;
data[0].permitted = REQUIRED_CAPS_0;
data[0].inheritable = 0;
data[1].effective = REQUIRED_CAPS_1;
data[1].permitted = REQUIRED_CAPS_1;
data[1].inheritable = 0;
if (capset (&hdr, data) < 0)
die_with_error ("capset failed");
}
/* Else, we try unprivileged user namespaces */
/* We need the process to be dumpable, or we can't access /proc/self/uid_map */
if (prctl (PR_SET_DUMPABLE, 1, 0, 0, 0) < 0)
die_with_error ("prctl(PR_SET_DUMPABLE) failed");
}
int main(int argc, char **argv)
{
int ret, config_defined = 0;
char *config_file, *data_file;
queue_t *data;
if (argc < 2)
usage();
while ((ret = getopt(argc, argv, "c:h")) != -1) {
switch (ret) {
case 'c':
config_file = optarg;
config_defined = 1;
break;
case 'h':
usage();
break;
default:
die(1, "use -h for help\n");
}
}
if (config_defined) {
if (argc == 2 || (argc == 3 && !strcmp(argv[1], "-c")))
usage();
} else
config_file = CONFIG_FILE;
data_file = argv[--argc];
if (!parse_config(config_file))
die(2, "could not parse config file\n");
ret = read_data(data_file, &data);
if (ret)
die_with_error(ret);
ret = insert_data(config, data);
if (ret)
die_with_error(ret);
exit(0);
}
static void
unblock_sigchild (void)
{
sigset_t mask;
sigemptyset (&mask);
sigaddset (&mask, SIGCHLD);
if (sigprocmask (SIG_UNBLOCK, &mask, NULL) == -1)
die_with_error ("sigprocmask");
}
static void
drop_caps (void)
{
struct __user_cap_header_struct hdr = { _LINUX_CAPABILITY_VERSION_3, 0 };
struct __user_cap_data_struct data[2] = { { 0 } };
if (!is_privileged)
return;
if (capset (&hdr, data) < 0)
die_with_error ("capset failed");
}
/**
* handle_client: Main application layer thread for each client
* @author ndemarinis (Basic implementation)
*/
void *handle_client(void *data)
{
struct client_handler_data *clnt = (struct client_handler_data *)data;
int pipes[2]; // Make a pipe to connect to the layer stack
int to_read, bytes_written;
char read_buffer[PIPE_BUFFER_SIZE];
struct packet* pkt_in;
pid_t clnt_pid; // PID we receive from the cilent before startup
struct layer_stack *stack; // Work data for layer stack implementation
memset(read_buffer, 0, PIPE_BUFFER_SIZE);
// Receive the client's PID for use as an identifier.
if((recv(clnt->sock, &clnt_pid, sizeof(pid_t), 0) != sizeof(pid_t)))
die_with_error("Error receiving PID from client!");
stack = create_layer_stack(clnt->sock, clnt_pid, pipes); // Initialize all of our layer threads
sleep(1); // Wait for the layer stack creation to settle
for(;;)
{
// Just try and echo a message for now.
printf("%d: APP: Starting a test read.\n\n", clnt_pid);
// Grab a string
if((to_read = read(pipe_read(pipes), read_buffer, PIPE_BUFFER_SIZE)) <= 0)
{
printf("%d: APP: Read 0 bytes from socket. Terminating!\n", clnt_pid);
break;
}
pkt_in = (struct packet *)read_buffer;
printf("%d: APP: Read packet of %d bytes with payload of %d bytes\n",
clnt_pid, to_read, pkt_in->length);
// Send it straight back
printf("%d: APP: Sending packet of %d bytes back to client\n", clnt_pid, to_read);
if((bytes_written = write(pipe_write(pipes), read_buffer, to_read)) <= 0)
{
printf("%d: APP: Wrote %d bytes, socket must have closed. Terminating!\n",
clnt_pid, bytes_written);
break;
}
}
printf("%d: Client successfully terminated!\n", clnt_pid);
pthread_exit(NULL);
}
/*****************************************************************************
* @name
* @description
* @param
* @return
*/
void send_sip_register(sip_session_t *session, int exp)
{
int n;
char *msg;
msg = mk_sip_msg(session, exp, REGISTER);
if ((n = sendto(session->socket, msg, strlen(msg) + 1, 0, (struct sockaddr *) &(session->addr), sizeof(session->addr))) != strlen(msg) + 1)
die_with_error("sendto() failed");
free(msg);
}
static void
write_uid_gid_map (uid_t sandbox_uid,
uid_t parent_uid,
uid_t sandbox_gid,
uid_t parent_gid,
bool deny_groups)
{
cleanup_free char *uid_map = NULL;
cleanup_free char *gid_map = NULL;
uid_map = xasprintf ("%d %d 1\n", sandbox_uid, parent_uid);
if (write_file_at (proc_fd, "self/uid_map", uid_map) != 0)
die_with_error ("setting up uid map");
if (deny_groups &&
write_file_at (proc_fd, "self/setgroups", "deny\n") != 0)
die_with_error ("error writing to setgroups");
gid_map = xasprintf ("%d %d 1\n", sandbox_gid, parent_gid);
if (write_file_at (proc_fd, "self/gid_map", gid_map) != 0)
die_with_error ("setting up gid map");
}
void
die_unless_label_valid (const char *label)
{
#ifdef HAVE_SELINUX
if (is_selinux_enabled () == 1)
{
if (security_check_context ((security_context_t) label) < 0)
die_with_error ("invalid label %s", label);
return;
}
#endif
die ("labeling not supported on this system");
}
/*****************************************************************************
* @name
* @description
* @param
* @return
*/
void send_sip_bye(sip_session_t *session)
{
int n;
char *s;
s = mk_sip_msg(session,0,BYE);
if((n =sendto(session->socket,s,strlen(s)+1,0,(struct sockaddr *) &(session->addr), sizeof(session->addr)) ) != strlen(s)+1)
die_with_error("sendto() failed");
close(session->call->socket);
session->prev_state = ONCALL;
session->curr_state = BYE;
}
int
main (int argc, char *argv[])
{
int fd;
int skip_lines;
off_t tar_start;
nvidia_major_version = atoi (NVIDIA_VERSION);
fd = open (NVIDIA_BASENAME, O_RDONLY);
if (fd == -1)
die_with_error ("open extra data");
skip_lines = find_skip_lines (fd);
tar_start = find_line_offset (fd, skip_lines);
if (lseek (fd, tar_start, SEEK_SET)!= tar_start)
die ("Can't seek to tar");
extract (fd);
close (fd);
unlink (NVIDIA_BASENAME);
if (nvidia_major_version > 367)
{
/* GLVND */
/* Default to nvidia */
symlink ("libGLX_nvidia.so." NVIDIA_VERSION, "libGLX_indirect.so.0");
/* unversioned */
symlink ("libEGL_nvidia.so." NVIDIA_VERSION, "libEGL_nvidia.so.0");
symlink ("libGLESv2_nvidia.so." NVIDIA_VERSION, "libGLESv2_nvidia.so.2");
symlink ("libGLX_nvidia.so." NVIDIA_VERSION, "libGLX_nvidia.so.0");
}
else
{
/* Non GLVND */
symlink ("libEGL.so." NVIDIA_VERSION, "libEGL.so.1");
symlink ("libGL.so." NVIDIA_VERSION, "libGL.so.1");
symlink ("libglx.so." NVIDIA_VERSION, "libglx.so.1");
symlink ("libGLESv2.so." NVIDIA_VERSION, "libGLESv2.so.1");
}
return 0;
}
int accept_connection(int server_socket)
{
int client_sock;
struct sockaddr_in client_addr;
unsigned int client_len;
client_len = sizeof(client_addr);
// Wait for connection from some client
if ((client_sock = accept(server_socket, (struct sockaddr *)&client_addr, &client_len)) < 0)
die_with_error("accept() failed");
printf("Handling client %s\n", inet_ntoa(client_addr.sin_addr));
return client_sock;
}
static int
find_skip_lines (int fd)
{
char buffer[1024];
ssize_t size;
char *line_start, *line_end, *buffer_end;
char *skip_str = NULL;
int skip_lines;
size = pread (fd, buffer, sizeof buffer - 1, 0);
if (size == -1)
die_with_error ("read extra data");
buffer[size] = 0; /* Ensure zero termination */
buffer_end = buffer + size;
line_start = buffer;
while (line_start < buffer_end)
{
line_end = strchr (line_start, '\n');
if (line_end != NULL)
{
*line_end = 0;
line_end += 1;
}
else
line_end = buffer_end;
if (has_prefix (line_start, "skip="))
{
skip_str = line_start + 5;
break;
}
line_start = line_end;
}
if (skip_str == NULL)
die ("Can't find skip size");
skip_lines = atoi (skip_str);
if (skip_lines == 0)
die ("Can't parse skip=%s", skip_str);
return skip_lines;
}
static const char * get_shell() {
char * shell = NULL;
shell = getenv("SHELL");
if (shell != NULL) {
return shell;
}
errno = 0;
struct passwd * pw_ent = getpwent();
if (pw_ent == NULL && errno != 0) {
die_with_error("getpwent");
}
if (pw_ent != NULL && pw_ent->pw_shell != NULL) {
return pw_ent->pw_shell;
}
return "/bin/sh";
}
/* Allocate memory for processes' argument lists.
* @num_of_ps: number of processes */
void prepare_arg_lists(int num_of_ps)
{
int i;
if (arr_ps_infos) {
free(arr_ps_infos);
arr_ps_infos = (PS_INFO *) NULL;
}
if (num_of_ps) {
arr_ps_infos = (PS_INFO *) malloc(num_of_ps*sizeof(PS_INFO));
if (!arr_ps_infos)
die_with_error("malloc");
/* initialize arr_ps_infos */
for (i = 0; i < num_of_ps; i++) {
arr_ps_infos[i].argc = 0;
arr_ps_infos[i].argv = (char **) NULL;
}
}
}
VkResult wait_for_fence(VkFence fence, u64 timeout)
{
if (timeout)
{
return vkWaitForFences(*g_current_renderer, 1, &fence, VK_FALSE, timeout * 1000ull);
}
else
{
while (auto status = vkGetFenceStatus(*g_current_renderer, fence))
{
switch (status)
{
case VK_NOT_READY:
continue;
default:
die_with_error(HERE, status);
return status;
}
}
return VK_SUCCESS;
}
}
static off_t
find_line_offset (int fd, int skip_lines)
{
off_t offset, buf_offset;
int n_lines;
ssize_t size;
char buffer[16*1024];
offset = 0;
buf_offset = 0;
n_lines = 1;
while (1)
{
size = pread (fd, buffer, sizeof buffer, offset);
if (size == -1)
die_with_error ("read data");
buf_offset = 0;
while (buf_offset < size)
{
if (buffer[buf_offset] == '\n')
{
n_lines ++;
if (n_lines == skip_lines)
return offset + buf_offset + 1;
}
buf_offset++;
}
offset += size;
}
/* Should not happen */
return 0;
}
ssize_t recv_header(int sockfd, char dest[])
{
ssize_t bytes_rcvd = 0;
ssize_t total_bytes_rcvd = 0;
bool cr_flag = false;
bool crlf_flag = false;
char cbuf = '\0';
do {
bytes_rcvd = recv(sockfd, &cbuf, 1, 0);
if (bytes_rcvd < 0)
die_with_error("recv() failed");
total_bytes_rcvd += bytes_rcvd;
if (bytes_rcvd > 0)
// Do a "-1" to account for the zero-indexed char array.
dest[total_bytes_rcvd - 1] = cbuf;
else
break;
if (cbuf != '\n')
cr_flag = false;
if (cbuf == '\r')
cr_flag = true;
if (cr_flag && cbuf == '\n') {
dest[total_bytes_rcvd] = '\0';
crlf_flag = true;
}
} while (!crlf_flag);
return total_bytes_rcvd;
}
